King of Rock is the second studio album by American hip hop group Run-D.M.C.. Produced in 1985, the album saw the group adopting a more rock-influenced sound, with several tracks prominently featuring heavy guitar riffs.

Run-D.M.C.'s version of the Beastie Boys "Slow and Low", was recorded as a demo during the sessions for this album and was not officially released until 2005, as an inclusion in the Deluxe edition of King of Rock.